CN219938317U - Online testing device for insulation wire resistance of thin film solar cell - Google Patents

Abstract

The utility model discloses an online testing device for insulation line resistance of a thin film solar cell, which belongs to the technical field of testing devices and comprises the following components: the conveying belt mechanism is characterized in that two supporting legs are fixedly arranged on two sides of the conveying belt mechanism, upright posts are fixedly arranged on two sides of the middle of the conveying belt mechanism, a transverse rail is arranged on an upper end face fixing frame at the top of each upright post, a driving wheel set is arranged on the transverse rail in a moving mode, a hydraulic cylinder is fixedly arranged at the center of the lower end face of the driving wheel set, a testing frame is fixedly connected to the end portion of an output shaft of the hydraulic cylinder, and a main structure of the testing frame is a frame main body. Therefore, the distance between the two detection probes can be freely changed, the point positions of the test can be freely adjusted, the test work is limited less, the test is more convenient and efficient, and meanwhile, the rear part of the detection probe is provided with a buffer spring which can shrink inwards after receiving acting force, so that a good protection effect is achieved on the electrode layer.

Description

Online testing device for insulation wire resistance of thin film solar cell

Technical Field

The utility model relates to a testing device, in particular to an online testing device for insulation wire resistance of a thin film solar cell, and belongs to the technical field of testing devices.

Background

A thin film solar cell is a device that converts solar energy into electric energy. The structural composition of a thin film solar cell generally includes a front electrode layer, a functional layer (PN junction or PIN junction), and a back electrode. The front electrode layer is generally required to be effectively segmented after the preparation of the front electrode layer is completed in the existing production process, so that a plurality of uniformly distributed and mutually insulated front electrode blocks are formed, if two front electrode blocks which are not completely insulated can cause a lack of an effective power generation area, the photoelectric conversion efficiency of the thin film solar cell is reduced, and the front electrode layer is required to be re-segmented at the moment.

The conventional test equipment is generally provided with a plurality of probes with fixed intervals, an ammeter is connected in series in the structure, an external power supply is arranged at the same time, the adjacent probes are connected to a part to be detected to form a circuit path, if the resistance of the test part does not reach the standard, the number of the ammeter is abnormal, the test effect is achieved, but the structure generally only can test the insulation resistance with fixed distance, the test equipment cannot change the interval between the two probes, the test point cannot be automatically replaced, the number of the test points is limited in the test process, meanwhile, the probe part structure lacks buffering measures, and the electrode layer is possibly worn in the test process, so that the online test device for the insulation line resistance of the thin film solar cell is provided for the problems.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the online testing device for the insulation line resistance of the thin film solar cell, which can realize the free change of the interval between two detection probes and can also freely adjust the point position of the test, so that the test is less limited and more convenient and efficient, and meanwhile, the buffer spring arranged at the rear part of the detection probe can retract after the buffer spring receives acting force, thereby playing a good role in protecting the electrode layer, and solving the technical problems that the test interval cannot be freely adjusted, the test point position is easy to scratch the electrode layer in the test process in the prior art.

In order to solve the problems, the following technical scheme is provided:

the utility model provides an online test device of film solar cell insulated wire resistance, includes conveyer belt mechanism, conveyer belt mechanism both sides are all fixed to be provided with two supporting legs, conveyer belt mechanism middle part both sides are fixedly provided with the stand, stand top up end mount is equipped with the cross rail, the cross rail is gone up to remove and is provided with the drive wheelset, the fixed pneumatic cylinder that is provided with in terminal surface center department under the drive wheelset, the output shaft end fixedly connected with test jig of pneumatic cylinder, the main constitution structure of test jig is the frame main part, frame main part one side end fixed disk motor that is provided with, be provided with the threaded rod in the barrel groove that the frame main part was seted up along the axis, threaded rod one end tip and disk motor fixed connection, the threaded rod overcoat is equipped with the screw sleeve, the slider lower terminal surface fixed connection of screw sleeve bottom is provided with the test cylinder, the test device comprises a rack main body, a disk motor, a driving wheel set, a driving belt mechanism, a test tube, a sliding block, a screw sleeve, a test tube and a test tube, wherein the position, adjacent to the disk motor, of the lower end surface of the rack main body is fixedly provided with the test tube, the sliding block is fixedly connected with the bottom of the screw sleeve and slides in the sliding block;

the main constitution structure of the test tube is a tube shell, an end piece is fixedly arranged at the inner top of a cavity of the tube shell, a piston block is slidably arranged in the tube shell, a spring is fixedly arranged at the center of the upper end face of the piston block, a wire is fixedly connected to the center of the upper end face of the piston block, the other end of the wire penetrates through the end piece and then penetrates out of a hole formed in the side face of the top of the tube shell, a probe is fixedly connected to the center of the lower end face of the piston block, the probe is pushed to shrink inwards by reaction force when the probe contacts with the electrode layer, and at the moment, the electrode layer only receives weak reaction force of the spring, so that the probe can not apply to the electrode layer under the premise of ensuring effective lap joint of the probe and the electrode layer, the electrode layer can be effectively prevented from being scratched by the probe, and the electrode layer is well protected.

Further, the one end that disc motor was kept away from to frame main part up end is fixed to be provided with the circuit box, fixed mounting has the ampere meter in the circuit box, fixed mounting has power supply unit in the circuit box, and above-mentioned structure can provide the electric energy for test resistor's circuit, can also measure the current information in the circuit in order to inspect whether its insulativity reaches the standard simultaneously.

Furthermore, two test cylinders are fixedly arranged on the frame main body, wherein a wire connected with one test cylinder is electrically connected with the ammeter, and a wire connected with the other test cylinder is electrically connected with the power supply assembly.

Furthermore, a wire is electrically connected between the ammeter and the power supply component, and the structural form provides necessary conditions for forming a complete test circuit.

Further, terminal surface upper portion fixed mounting has the current display screen before the circuit box, terminal surface lower part fixed mounting has the voltage display screen before the circuit box, and the information of circuit when above-mentioned structure can show the switch-in current insulated wire resistance is through comparing with normal value thereby judge whether this part insulating properties is up to standard.

Furthermore, the end part of the bottom end of the probe is fixedly connected with a spherical contact head with good conductive performance, and the structure can greatly reduce friction with the electrode layer and has good protection effect on the electrode layer.

Further, the size of the spiral convex line fixedly arranged outside the threaded rod body is matched with the size of the spiral concave line of the inner wall of the threaded sleeve barrel, and the structure can ensure that the threaded rod and the threaded sleeve are tightly connected, so that a good force transmission effect is achieved, and shaking is not easy to occur in the transmission process.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the driving wheel set is arranged to move on the transverse rail so as to change the test point position in the transverse direction, the conveyor belt mechanism works to drive the object to be tested to move in the longitudinal direction, so that the test point position is changed in the longitudinal direction, the combination and superposition of the modes can realize that the test rack is moved to any position of the plane of the object to be tested to start the test work, and meanwhile, the test cylinders fixedly connected with the threaded sleeves can change the interval between the two test cylinders through movement so as to play the effect of adjusting the test interval;

2. according to the utility model, through the spring structure serving as a buffer measure, when the probe is contacted with the electrode layer, the probe is pushed to shrink inwards by the reaction force, and at the moment, the electrode layer is only subjected to the weak reaction force of the spring, so that the probe can not apply a large extrusion force to the electrode layer on the premise of ensuring effective lap joint of the probe and the electrode layer, the electrode layer can be effectively prevented from being scratched by the probe, and the electrode layer is well protected;

specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of an apparatus for testing insulation line resistance of a thin film solar cell in-line according to a preferred embodiment of the present utility model;

FIG. 2 is a cross-sectional view showing the structure of a preferred embodiment of an on-line testing apparatus for insulation line resistance of a thin film solar cell according to the present utility model;

FIG. 3 is a cross-sectional view showing the structure of a test frame of a preferred embodiment of an on-line test apparatus for insulation line resistance of a thin film solar cell according to the present utility model;

FIG. 4 is a cross-sectional view showing the structure of a test cartridge of a preferred embodiment of an on-line test apparatus for insulation line resistance of a thin film solar cell according to the present utility model;

FIG. 5 is a rear view of a test frame structure of a preferred embodiment of an on-line test apparatus for insulation line resistance of thin film solar cells according to the present utility model;

fig. 6 is a front view showing a structure of a test frame of a preferred embodiment of an on-line test apparatus for insulation line resistance of a thin film solar cell according to the present utility model.

In the figure: 1. a conveyor belt mechanism; 2. support legs; 3. a column; 4. a transverse rail; 5. a driving wheel group; 6. a hydraulic cylinder; 7. a test rack; 8. a rack main body; 9. a disk motor; 10. a threaded rod; 11. a threaded sleeve; 12. a test cartridge; 13. a chute; 14. a cartridge housing; 15. an end piece; 16. a piston block; 17. a spring; 18. a wire; 19. a probe; 20. a circuit box; 21. a galvanometer; 22. a power supply assembly; 23. a current display screen; 24. a voltage display screen; 25. and a contact.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-2, the online testing device for insulation line resistance of a thin film solar cell provided by the embodiment comprises a conveying belt mechanism 1, two supporting legs 2 are fixedly arranged on two sides of the conveying belt mechanism 1, an upright post 3 is fixedly arranged on two sides of the middle of the conveying belt mechanism 1, a transverse rail 4 is arranged on an upper end surface fixing frame at the top of the upright post 3, a driving wheel set 5 is movably arranged on the transverse rail 4, a hydraulic cylinder 6 is fixedly arranged at the center of the lower end surface of the driving wheel set 5, a testing frame 7 is fixedly connected to the end part of an output shaft of the hydraulic cylinder 6, the structure combination work can realize free adjustment of testing points and testing intervals, so that the testing work is more convenient and efficient, the driving wheel set 5 can move on the transverse rail 4 to realize transverse change of the testing points, the conveying belt mechanism 1 can drive an object to be tested to move in the longitudinal direction, so as to realize longitudinal change of the testing points, and the combination superposition of the modes can realize that the testing frame 7 is moved to any position of the plane of the object to be tested.

As shown in fig. 3, the main structure of the testing rack 7 provided in this embodiment is that the rack main body 8 is provided with the disk motor 9 at one end of the rack main body 8, the threaded rod 10 is provided in the barrel slot provided along the axis of the rack main body 8, one end of the threaded rod 10 is fixedly connected with the disk motor 9, the threaded rod 10 is sleeved with the threaded sleeve 11, the size of the spiral convex line fixedly provided on the rod body of the threaded rod 10 is matched with the size of the spiral concave line of the inner wall of the threaded sleeve 11, the structure can ensure that the connection between the threaded rod 10 and the threaded sleeve 11 has a good force transmission effect, shaking is not easy to occur in the transmission process, the lower end surface of the sliding block fixedly connected with the bottom of the threaded sleeve 11 is fixedly provided with the testing barrel 12, the middle part of the lower end surface of the rack main body 8 is provided with the sliding slot 13, the sliding block fixedly connected with the bottom of the threaded sleeve 11 slides in the sliding slot 13, and the above structure combination work can enable the testing barrel 12 fixedly connected with the threaded sleeve 11 to change the interval between the two testing barrels 12 by moving to play a role in adjusting the testing interval.

As shown in fig. 4, in the online testing device for insulation line resistance of a thin film solar cell provided in this embodiment, the main structure of the testing barrel 12 is that the barrel housing 14 is formed by fixing the end piece 15 at the top in the cavity of the barrel housing 14, the piston block 16 is slidably disposed in the barrel housing 14, the spring 17 is fixedly disposed at the center of the upper end surface of the piston block 16, the wire 18 is fixedly connected at the center of the upper end surface of the piston block 16, the other end of the wire 18 passes through the end piece 15 and then penetrates out of the hole formed in the side surface of the top of the barrel housing 14, the probe 19 is fixedly connected at the center of the lower end surface of the piston block 16, when the probe 19 contacts with the electrode layer, the probe 19 is pushed to shrink inwards by the reaction force, at this moment, the electrode layer is only subjected to weak reaction force of the spring 17, so that the probe 19 can not apply to the electrode layer with a large extrusion force under the premise of ensuring effective overlapping of the probe 19 and the electrode layer, the electrode layer can be effectively prevented from being damaged, in addition, the end part of the bottom end of the probe 19 is fixedly connected with a contact head 25 with good conductive performance and in the shape of the spherical shape, and the contact effect between the probe 19 and the electrode layer can be greatly reduced.

As shown in fig. 3 and 5, in the online testing device for insulation wire resistance of a thin film solar cell provided in this embodiment, a circuit box 20 is fixedly disposed at one end of the upper end surface of a frame main body 8 far away from a disc motor 9, a ammeter 21 is fixedly mounted in the circuit box 20, a power supply assembly 22 is fixedly mounted in the circuit box 20, two testing drums 12 are fixedly mounted on the frame main body 8, a wire 18 connected with one testing drum 12 is electrically connected with the ammeter 21, a wire 18 connected with the other testing drum 12 is electrically connected with the power supply assembly 22, and a wire 18 is electrically connected between the ammeter 21 and the power supply assembly 22.

As shown in fig. 6, in the on-line testing device for insulation line resistance of a thin film solar cell provided in this embodiment, a current display screen 23 is fixedly installed on the upper portion of the front end surface of a circuit box 20, a voltage display screen 24 is fixedly installed on the lower portion of the front end surface of the circuit box 20, and the above structure can display information of a circuit when the current insulation line resistance is accessed, and by comparing the information with a normal value, whether the insulation performance of the part meets the standard is judged.

The application principle and the application flow of the utility model are as follows: the driving wheel set 5 moves on the transverse rail 4 to change the test point in the transverse direction, the conveyor belt mechanism 1 works to drive the object to be tested to move in the longitudinal direction, so that the test point is changed in the longitudinal direction, the combination and superposition of the modes can realize that the test frame 7 moves to any position of the plane of the object to be tested to start the test work, then the disc motor 9 works to drive the threaded rod 10 to rotate, the threaded sleeve 11 moves according to the rotation direction under the meshing effect of threads, the test cylinder 12 fixedly connected with the threaded sleeve moves according to the rotation direction, the distance between the two test cylinders 12 can be changed through movement, the effect of adjusting the test distance is achieved, and then the hydraulic cylinder 6 works to press the whole test frame 7 to enable the contact between the probe 19 and the electrode layer to start the test resistance to reach the standard; when the probe 19 contacts with the electrode layer, the probe 19 is pushed to shrink inwards by the reaction force, and at the moment, the electrode layer only receives the weak reaction force of the spring 17, so that the probe 19 can not apply larger extrusion force to the electrode layer on the premise of ensuring effective lap joint of the probe 19 and the electrode layer, the electrode layer can be effectively prevented from being scratched by the probe 19, and the electrode layer is well protected.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims (7)

1. The utility model provides a film solar cell insulated wire resistance on-line testing device, its characterized in that, including conveyer belt mechanism (1), conveyer belt mechanism (1) both sides are all fixed and are provided with two supporting legs (2), conveyer belt mechanism (1) middle part both sides are fixed and are provided with stand (3), stand (3) top up end mount is equipped with rail (4), the rail (4) upward movement is provided with drive wheelset (5), the fixed pneumatic cylinder (6) that is provided with in terminal surface center department under drive wheelset (5), the output shaft end fixedly connected with test frame (7) of pneumatic cylinder (6), the main constitution structure of test frame (7) is frame main part (8), frame main part (8) one side end fixed is provided with disk motor (9), be provided with threaded rod (10) in the barrel groove that frame main part (8) set up along the axis, threaded rod (10) one end and disk motor (9) fixed connection, threaded rod (10) overcoat is equipped with screw sleeve (11), the fixed connection's of screw sleeve (11) bottom terminal surface end surface is provided with test frame (8) under the fixed connection's the terminal surface, test frame main part (8) is provided with down end surface (12) and is provided with under the fixed position of a fixed part (13), a sliding block fixedly connected with the bottom of the threaded sleeve (11) slides in the sliding groove (13);

the main constitution structure of a test tube (12) is a tube shell (14), an end piece (15) is fixedly arranged at the top in a cavity of the tube shell (14), a piston block (16) is slidably arranged in the tube shell (14), a spring (17) is fixedly arranged at the center of the upper end face of the piston block (16), a wire (18) is fixedly connected at the center of the upper end face of the piston block (16), the other end of the wire (18) penetrates through the end piece (15) and then penetrates out of a hole formed in the side face of the top of the tube shell (14), and a probe (19) is fixedly connected at the center of the lower end face of the piston block (16).

2. The online testing device for the insulation line resistance of the thin-film solar cell according to claim 1, wherein a circuit box (20) is fixedly arranged at one end, far away from the disc motor (9), of the upper end face of the frame main body (8), a ammeter (21) is fixedly arranged in the circuit box (20), and a power supply assembly (22) is fixedly arranged in the circuit box (20).

3. The on-line testing device for the insulation line resistance of the thin film solar cell according to claim 1, wherein two testing drums (12) are fixedly installed on the frame main body (8), a wire (18) connected out of one testing drum (12) is electrically connected with a ammeter (21), and a wire (18) connected out of the other testing drum (12) is electrically connected with a power supply assembly (22).

4. The on-line testing device for the insulation line resistance of the thin film solar cell according to claim 2, wherein a wire (18) is electrically connected between the ammeter (21) and the power supply assembly (22).

5. The on-line testing device for the insulation line resistance of the thin film solar cell according to claim 2, wherein a current display screen (23) is fixedly arranged on the upper portion of the front end face of the circuit box (20), and a voltage display screen (24) is fixedly arranged on the lower portion of the front end face of the circuit box (20).

6. The on-line testing device for the insulation line resistance of the thin film solar cell according to claim 1, wherein the bottom end part of the probe (19) is fixedly connected with a contact head (25) which has good electric conduction performance and is spherical in shape.

7. The online testing device for the insulation line resistance of the thin-film solar cell according to claim 1, wherein the size of a spiral convex line fixedly arranged on the outer side of the rod body of the threaded rod (10) is matched with the size of a spiral concave line on the inner wall of the threaded sleeve (11).